03-27-2012, 12:15 PM
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#1
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Registered User
Join Date: Sep 2009
Location: toronto
Posts: 2,668
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Valve timing data
Can anyone give me:
-The intake valve opening BTDC in deg and closing ABDC
-intake valve lift in mm
-intake port size dia in mm
-intake valve dia in mom
-actual valve port area in sq mm
-bore dia in mm
-stroke in mm
-compression ratio
This would be with vario cam actuated on a 3.2L 2000 S
Thanks
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986 00S
Last edited by jaykay; 03-27-2012 at 12:21 PM.
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03-27-2012, 02:08 PM
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#2
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Registered User
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,709
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Quote:
Originally Posted by jaykay
Can anyone give me:
-The intake valve opening BTDC in deg and closing ABDC Rennlist ??
-intake valve lift in mm 10.5mm for 2003 3.2 VarioCam + 2000 ??
-intake port size dia in mm 58mm X 30mm @ inlet
-intake valve dia in mom 37.1mm
-actual valve port area in sq mm ??
-bore dia in mm 93mm
-stroke in mm 78mm
-compression ratio 11 to 1
This would be with vario cam actuated on a 3.2L 2000 S
Thanks
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I believe Rennlist has Cam timing specs.
Last edited by BYprodriver; 03-27-2012 at 02:09 PM.
Reason: clarification
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03-27-2012, 03:12 PM
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#3
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Registered User
Join Date: Aug 2004
Location: Alta Loma, CA
Posts: 1,334
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Its in the factory manuals..
and I can only find 2.5 right now.. I have CaymanS/3.6/3.8/3.8X51 but don't see 2.7 and 3.2
These would have been supplements to the 986 2.5 factory manuals
B
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We have worked with amateur and professional drivers for over 26 years. In house machinist, In house fabrication. Our cars, our parts, our engines, our transmission's run nationwide at events every weekend. We work side by side with industry names developing parts.
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03-27-2012, 03:19 PM
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#4
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Registered User
Join Date: Aug 2004
Location: Alta Loma, CA
Posts: 1,334
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Decided to post the 2.5 so people have it:
Valve timing with 1 mm valve travel
Inlet opens 15D after TDC
Inlet closes 46D after BDC
Outlet opens 38D before BDC
Outlet closes 7D before TDC
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Engine Builds, Transmission Builds, Engine Conversions, Suspension Installs, Suspension Tuning, Driver Coaching, Data Acquisition, Video, SCCA/PCA/POC/NASA/GRAND AM/ALMS.
We have worked with amateur and professional drivers for over 26 years. In house machinist, In house fabrication. Our cars, our parts, our engines, our transmission's run nationwide at events every weekend. We work side by side with industry names developing parts.
Last edited by Brad Roberts; 03-27-2012 at 03:26 PM.
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03-27-2012, 03:26 PM
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#5
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Registered User
Join Date: Aug 2004
Location: Alta Loma, CA
Posts: 1,334
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Found it.. I did have it
3.2 Boxster S
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Engine Builds, Transmission Builds, Engine Conversions, Suspension Installs, Suspension Tuning, Driver Coaching, Data Acquisition, Video, SCCA/PCA/POC/NASA/GRAND AM/ALMS.
We have worked with amateur and professional drivers for over 26 years. In house machinist, In house fabrication. Our cars, our parts, our engines, our transmission's run nationwide at events every weekend. We work side by side with industry names developing parts.
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03-27-2012, 03:30 PM
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#6
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Registered User
Join Date: Aug 2004
Location: Alta Loma, CA
Posts: 1,334
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Boxster 2.7
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Engine Builds, Transmission Builds, Engine Conversions, Suspension Installs, Suspension Tuning, Driver Coaching, Data Acquisition, Video, SCCA/PCA/POC/NASA/GRAND AM/ALMS.
We have worked with amateur and professional drivers for over 26 years. In house machinist, In house fabrication. Our cars, our parts, our engines, our transmission's run nationwide at events every weekend. We work side by side with industry names developing parts.
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03-27-2012, 04:57 PM
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#7
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Registered User
Join Date: Sep 2009
Location: toronto
Posts: 2,668
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Thank you for the information gentlemen!
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986 00S
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03-27-2012, 05:14 PM
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#8
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Engine Surgeon
Join Date: Aug 2008
Location: Cleveland GA USA
Posts: 2,425
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I'll post a plot from my cam doctor tomorrow.
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IMS Solution/ Faultless Tool Inventor
US Patent 8,992,089 &
US Patent 9,416,697
Developer of The IMS Retrofit Procedure- M96/ M97 Specialist
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03-27-2012, 05:33 PM
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#9
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Registered User
Join Date: Aug 2004
Location: Alta Loma, CA
Posts: 1,334
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Too funny,
I used the cam doctor at AASCO to look at all the stock cams.. LOL
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Engine Builds, Transmission Builds, Engine Conversions, Suspension Installs, Suspension Tuning, Driver Coaching, Data Acquisition, Video, SCCA/PCA/POC/NASA/GRAND AM/ALMS.
We have worked with amateur and professional drivers for over 26 years. In house machinist, In house fabrication. Our cars, our parts, our engines, our transmission's run nationwide at events every weekend. We work side by side with industry names developing parts.
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